In this situation, going past a cyclist, do you have to exercise special caution?

Yes, the overtaking manoeuvre, which in this case is passing a cyclist, always requires special caution. According to Art. 24 para. 2 of the Road Traffic Act, when overtaking, the driver is obliged to maintain a safe distance from the overtaken vehicle or road user, which for a bicycle is not less than 1 metre. Additionally, the poor weather conditions and the vehicle approaching from the opposite direction, visible in the video, heighten the need for increased vigilance.